You may include 'OR' within dimensions or within metrics but not within dimensions and metrics together. For example, for dimensions D1 and D2 and metrics M1 and M2: Valid: (D1 = 1 or D2 = 2) and (M1 > 100 or M2 > 1000) Invalid: (D1 = 2 or M1 > 100)

You may use 'OR' between 'AND' but not 'AND' between 'OR.' For example: Valid: (D1 = 1 or D2 = 2) and (M1 > 100 or M2 > 1000) Invalid: (D1 = 1 and D2 = 2) or (M1 > 100 and M2 > 1000)